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Taskmaster 4.80-12 Bias Trailer Tire with 12" White Mod Wheel - 4 on 4 - Load Range C

Taskmaster 4.80-12 Bias Trailer Tire with 12" White Mod Wheel - 4 on 4 - Load Range C

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TTWAS12B4WMHP - 12 Inch Taskmaster Tire with Wheel
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Bias tire has ply rating of 6 and 990-lb maximum load at 90 psi. The 12" diameter x 4" wide steel trailer wheel has a 4 on 4 bolt pattern. 3-Step powder coat finish provides rust resistance. Improved torque retention secures wheel. Lowest Prices for the best tires and wheels from Taskmaster. Taskmaster 4.80-12 Bias Trailer Tire with 12" White Mod Wheel - 4 on 4 - Load Range C part number TTWAS12B4WMHP can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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Taskmaster Tires and Wheels - TTWAS12B4WMHP

  • Tire with Wheel
  • 12 Inch
  • 4 on 4 Inch
  • 4.80-12
  • Load Range C
  • Steel Wheels - Powder Coat
  • Bias Ply Tire
  • Taskmaster
  • Standard Rust Resistance

Bias tire has ply rating of 6 and 990-lb maximum load at 90 psi. The 12" diameter x 4" wide steel trailer wheel has a 4 on 4 bolt pattern. 3-Step powder coat finish provides rust resistance. Improved torque retention secures wheel.


  • Tire-and-wheel assembly is ideal for stock trailers, utility trailers, and campers
  • Steel wheel with modular design is sturdy and corrosion resistant
    • 3-Step finishing process includes phosphate zinc bath, e-coat primer, and white powder coat on outboard side
    • Inboard side is lightly e-coated to reduce friction and provide rust resistance with less flaking
  • Improved torque retention (ITR) technology helps to keep wheel securely in place on your trailer
    • Uncoated stud holes are beveled to offer better clamp force retention
  • Bias ply tire is constructed with strong nylon cords
    • Great for off-road and agricultural use
    • Tread depth bars offer a quick visual indicator of tread wear
  • Assembly meets DOT specifications and exceeds FMVSS


  • Rim dimensions: 12" diameter x 4" wide
  • Bolt pattern: 4 on 4"
  • Wheel bolt size: 1/2"-20
  • Wheel capacity: 1,250 lbs
  • Pilot diameter: 2.82"
  • Offset: 0
  • Tire size: 4.80-12
    • Section width: 4.75"
    • Outer diameter: 20.5"
  • Tire capacity:
    • Load range: C
    • Ply rating: 6
    • Maximum load: 990 lbs at 90 psi
  • Maximum speed: 81 mph
  • 2-Year limited warranty on tire and wheel

Corrosion-Resistant Finish

The steel wheel goes through a 3-step finishing process that makes it both attractive and corrosion resistant. The wheel is first submerged in a zinc phosphate bath to ensure good paint adhesion. It is then e-coated with an acrylic primer base and the outboard side is finished with baked-on DuPont powder paint. The light e-coat on the inboard side of the wheel reduces friction between the wheel and your hub and eliminates the flaking that can occur with a heavily applied paint finish.

Improved Torque Retention Technology

The automotive-rated center disc is raised and the stud holes are beveled and uncoated for better clamp force retention. This technology helps the wheel stay tight against your hub without the need for constant retightening.

Bias Tires vs. Radial Tires

Bias vs. radial tire graphic

Bias ply tires are designed for off-road or agricultural applications. They are built with thick, durable nylon cords that are positioned at a 30- to 45-degree angle to the direction of travel. The layers alternate in a crisscross pattern, making the sidewalls stiffer so that the entire tire is able to flex easily. As a result, the tire provides a smooth ride and improved handling when trailering on uneven surfaces.

Determining the Bolt Pattern

The first number in the bolt pattern is the number of bolt holes. The second number denotes the diameter, in inches, of the circle on which the bolt holes sit.

Bolt Pattern - Odd

To determine the bolt-circle diameter on wheels with an odd number of bolt holes, measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from the first. (Example: "5 on 4-1/2" means 5 bolt holes with 4-1/2" measured to a point halfway between the opposite bolt holes.)

Bolt Pattern - Even

On wheels with an even number of bolt holes, measure from the center of one bolt hole to the center of the hole directly across from it. (Example: "8 on 6-1/2" means 8 bolt holes with 6-1/2" from the center of one hole to the center of another on the opposite side.)

Bolt Pattern - Side

Measuring the distance from the center of one bolt hole on the wheel to the center of a bolt hole right next to it can also help to determine the bolt pattern.

  • If D = 2-5/8", then the bolt pattern is 5 on 4-1/2"
  • If D = 2-3/4", then the bolt pattern is 5 on 4-3/4"
  • If D = 3", then the bolt pattern is 5 on 5"
  • If D = 3-1/4", then the bolt pattern is 5 on 5-1/2"

AS12B4WMHP Task Master ST480X12 Bias Tire with White Modular Rim - 4 on 4 - LR C

Video of Taskmaster 4.80-12 Bias Trailer Tire with 12" White Mod Wheel - 4 on 4 - Load Range C

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Taskmaster Tires and Wheels - Tire with Wheel - TTWAS12B4WMHP Review

Customer Reviews

Taskmaster 4.80-12 Bias Trailer Tire with 12" White Mod Wheel - 4 on 4 - Load Range C - TTWAS12B4WMHP

Average Customer Rating:  4.9 out of 5 stars   (309 Customer Reviews)

Bias tire has ply rating of 6 and 990-lb maximum load at 90 psi. The 12" diameter x 4" wide steel trailer wheel has a 4 on 4 bolt pattern. 3-Step powder coat finish provides rust resistance. Improved torque retention secures wheel.


Tires just like advertised. Got them this afternoon just like stated. Good product and good service. 513991


Sorry this took so long, just looked at this email.....I believe it was in the scam folder. I received the tire for my tailer and it was perfect. Everything I expected. I wanted it for a spare for my small trailer and mounted it in an area and it fit perfectly . Sorry I don't have a photo. Quick delivery, well packaged and no hassle. Thank you for your expert service. Larry H 728880


Bought these to replace old tires and rims. Fast delivery, aired up and ready to be installed. In 10 minutes my trailer was back on the road and looking better than ever! 725229


Tires arrived as directed, and I'm am completely satisfied, I will be purchasing more trailer parts in the future. George and Sheila were excellent Good prices and wide selection 716380


Needed the 4.80-12 Load C and etrailer.com had it. Fits on my pop-up without issue. Shipped fast and I got it in time for our camping trip. Always nice to do business with etrailer.com 681031


Great customer service. Fast shipping. 679496


Arrived very quickly. Great product! 679137


Product arrived very fast and packef well. I am very pleased and will promote etrailer to all I know. 643248


These are nice tires and wheels. Unfortunately haven't had too many chances to use the ol pop up but I'm certainly happy with my purchase. 568453


good product,super fast shipping, 525596


Product looks good, installed no issues. Just started using on my old boat converted to utility trailer, should be fine. Thanks 509371


You got it here. Thank you. Tires and wheels are installed but not yet used so not test. Look better than the original equipment. Problem solved was better product at a better price. If it holds true to the ratings. And your site make it possible to get the correct tires and wheels. Sorry no pics. 488454


If you drive on the highway, you should consider these. The 81 MPH rating on these tires is a must (unless you enjoy driving 55 for hour after tedious hour). If you travel more than a few miles from home, the higher load rating is great for your camper/trailer. 432614


Exactly, what I needed at a very good price. Customer service, has been great. 426812


Very fast shipping, well packaged, quality product! I am impressed, and will be back! 414653


I first ordered 3 Kenda tires but they became backordered. My representative was Katie D. She helped keep me updated on my order and helped me out with a different set of tires when I needed them right away. Fast shipping. Thanks Katie. 405403


Look good on my old boat trailer! 397289


I ordered 3 Taskmaster 4.80-12 Bias Trailer Tire with 12" White Mod Wheel - 4 on 4 - Load Range C (Item # TTWAS12B4WMHP) on a Saturday. To my surprise they shipped them right away. The packaging was perfect and the wheels look strong and well made. This little kit trailer (cargo box is 60"x40"x24") has once been in a 3000 mile trip around the West, and the 8" wheels where almost 20 years old so I decided to get fresh tires and ordered the 12" wheels. I'll probably have to give the fenders a little more clearance but that's OK. I'm very happy with the product and service. Thank you guys! 365362


Put these wheels/tires on my 1993 Palomino Pinto. They worked out well. 303179


Very professional. Highly recommended. They go out of their way to make the order right! Thanks! 233948


Review from a similar Taskmaster White Mod Bias Ply in Tires and Wheels

I needed a spare for my tandum trailer but I was unsure of the size of the wheel and tire. I sent an email concerning this situation. I was promptly advised as to how to measure the bolt pattern and what tire size was compatible with my older tires. I ordered it up and it is perfect! Thanks. 309788


Review from a similar Taskmaster White Mod Bias Ply in Tires and Wheels

very happy with my purchase. Thanks alo t 262021


Review from a similar Taskmaster White Mod Bias Ply in Tires and Wheels

This wheel tire unit is a nice product. Beats the look and finish of the originals on my month old utility trailer. Using it for a spare and I'm sure I won't be disappointed. 172496

Tire holding up great.
Rico N - 02/06/2016


- TTWA225B645WM

Review from a similar Taskmaster White Mod Bias Ply in Tires and Wheels

When the tires arrived they were individually packaged in cardboard boxes, which made it nice since it was blizzarding here in Ohio. They are very nice tires and rims and were a perfect fit. 487808

Donald - 03/22/2019



Review from a similar Taskmaster White Mod Bias Ply in Tires and Wheels

I received my tire and wheel today which was several days sooner than I expected. It was exactly what I ordered and I am extremely satisfied with the purchase. It was shipped directly to my door and cheaper than I could have purchased it locally. I have made several such purchases from etrailer and have never once been disappointed. Thanks again for the great customer service ! 628935

Show More Reviews

Ask the Experts about this Taskmaster Tires and Wheels

  • Kenda vs Taskmaster Wheel and Tire Comparison for 4.80-12 on 4 Bolt Wheel
    The Kenda Wheel and Tire part # AM30620 and the Taskmaster part # TTWAS12B4WMHP you referenced are very similar in a lot of ways. White wheel, 4 on 4 inch bolt pattern, Load Range of C, but the big difference is the speed rating. The Taskmaster is rated for speeds up to 81 MPH and the Kenda is only for up to 65 mph.
    view full answer...
  • Does Increasing Tire and Wheel Capacity Increase Trailer Weight Capacity
    Trailer weight capacities are based on a number of components. You have the tire capacity, axle capacity, coupler, capacity, brake capacity etc. So if you were to upgrade just one component to a higher capacity in most cases you don't increase the capacity of the entire trailer. That being said the Taskmaster wheel and tire part # TTWAS12B4WMHP that you mentioned is a great choice since it will give you a higher 81 mph speed rating. It has a capacity of 990 lbs per wheel/tire when inflated...
    view full answer...
  • Should Tire PSI be Filled to What is on the Sidewall
    You were correct and whoever was filling the tire with air was incorrect; the tire on the Taskmaster 4.80-12 Bias Trailer Tire with 12" White Mod Wheel # TTWAS12B4WMHP has a 90 psi on the sidewall and you always want to inflate the tire to the maximum psi listed on the sidewall. Doing this will give you the best performance, allowing the tire to wear more slowly and give you optimum gas mileage. The cut out I added is from our linked help article on trailer tires which you can take a...
    view full answer...
  • Changing Tire and Wheel Size to Narrow Tear Trailer Track Width
    It sounds like your best bet is going to be a 12 inch wheel with a 4.80-12 tire. The 12 inch rim has a width of 4 inches. With a 12 inch wheel, you will be able to gain tire diameter while also using a more narrow wheel. All of our tires have a 0 offset. I recommend using the Taskmaster 4.80-12 Bias Trailer Tire with 12 Inch White Mod Wheel - 4 on 4 - Load Range C # TTWAS12B4WMHP. This tire has a section width of 4.75 inches and an overall outer diameter of 20.5 inches. The maximum load...
    view full answer...
  • Weight and Capacity of Taskmaster 4.80-12 Bias Trailer Tire w/12" White Mod Wheel TTWAS12B4WMHP
    Taskmaster 4.80-12 Bias Trailer Tire with 12" White Mod Wheel # TTWAS12B4WMHP weighs approximately 20 pounds total. As far as capacity you will need to go by the lower rating which in this case is the tire rated for 990 pounds at 90 psi.
    view full answer...
  • Do Trailer Tire and Wheel Combos Come Mounted and Balanced
    Taskmaster tire and wheel combo # TTWAS12B4WMHP does come mounted already. Trailer tire and wheel manufacturers do a type of balancing where they match the heavy sot in the tire with the light spot in the wheel. Trailer tires don't really need to be balanced beyond that but you could have them balanced further at a local tire shop. The tire and wheel combos are ready to bolt onto a hub using lug nuts (not included). For a lug nut that you can use with tire and wheel combo # TTWAS12B4WMHP...
    view full answer...
  • Recommended 12 Inch Wheels And Tires For Boat Trailer That Had 4.8-8 Tires
    You can move up to a 12 inch wheel, however our radial tires in that 12 inch size are all rated for 65 mph max, so I think you'll want to stick to the bias tires. I can get you a 12 inch bias tire that is a 4.8 with the speed rating you desire in the Taskmaster 4.80-12 Bias Trailer Tire - Load Range C # TTWSF48012C which will fit any 12 x 4 inch wheel/rim you desire with your 4 on 4 bolt pattern. I have added a link to your options but we don't have any of this size with an offset. ...
    view full answer...
  • Spare 4-Bolt Wheel with 4.80-12 Size Special Trailer Tire for Higher-Speed Highway Travel
    You can see all of our trailer wheel/tire products in your 4.80-12 tire size and 4-bolt wheel pattern on the page that I linked for you. The Taskmaster # TTWAA12WS, which has a Load Range C weight rating of 990-lbs at 90-psi pressure, is rated with an M speed rating, meaning good up to 81-mph. The other M-rated options are part # TTWAS12B4SMHP and # TTWAS12B4WMHP. With any type, size or brand of special trailer tire you will get the best performance from it by always observing the...
    view full answer...
  • Size 4.80-12 Tire/Rim Recommendations for Pop-Up Camper
    The main issue people run into when switching to larger tires is that there isn't enough clearance, but if you have been using the larger tires for years without a problem, then it sounds like the size isn't an issue for your trailer. The next factor you'll want to consider when buying new tires is the bolt pattern of your wheel. Our 4.80-12 tires come in a 4 on 4” bolt pattern (4 lugs) and a 5 on 4-1/2” bolt pattern (5 lugs). I've attached an article on how to determine your bolt pattern....
    view full answer...
  • Trailer Tire Weight and Speed Ratings Available in Size 4.80-12
    If your goal is to upgrade your boat trailer tires for safe travel on longer trips you may be able to do so without having to change your wheel/tire size or your hubs. If you refer to the linked page you will see all tire and wheel/tire items in your tire size 4.80-12 and with the 5-on-4-1/2 wheel bolt pattern. Taskmaster wheel/tire # AT12R45SM is a Load Range C tire and silver powder-coated wheel rated for 990-lbs at its specified pressure of 90-psi. This tire is rated for highway speeds...
    view full answer...
  • Does Trailer Tire Size 4.80-12 have Higher Speed Rating than 4.80-8
    Taskmaster has a tire in the size of 4.80-12 that has a speed rating of 81 mph which would be more than enough. For this tire mounted to a wheel we have the part # TTWAS12B45WSHP for a 5 on 4-1/2 inch bolt pattern if you instead need a 4 on 4 inch bolt pattern we have the # TTWAS12B4WMHP.
    view full answer...
  • Replacement Wheel and Tire Recommendation to Replace 4.80-12 with Higher Speed Rating for Trailer
    For just a replacement tire in your size of 4.8-12 that has an 81 mph speed rating you would want the part # TTWSF48012C or for the tire and wheel with the 4 on 4 inch bolt pattern you would want the part # TTWAS12B4WMHP.
    view full answer...
  • Trailer Tire Recommendation for Size 4.80-12
    The size 4.80-12 is a standard trailer tire size and is one we offer. For that we have the part # TTWSF48012C which is a bias ply tire in a Load Range of C that has a capacity of 990-lb maximum load at 90 psi. If you need this tire on a wheel with a 4 bolt pattern we have the part # TTWAS12B4WMHP which would be a great option.
    view full answer...
  • Speed Ratings of 4.80-12 Bias Trailer Tires
    Kenda 4.80-12 Bias Trailer Tire # AM30540 is rated for 65-mph maximum speed. In this size and 4-on-4 wheel type we do have options in Load Range C with a higher speed rating. Taskmaster 4.80-12 Bias Trailer Tire # TTWAA12WS is rated to 81-mph (speed rating code M) and so are parts # TTWAS12B4SMHP and # TTWAS12B4WMHP.
    view full answer...
  • Trailer Wheel & Tire Swap on Aluminum Utility Trailer
    A trailer tire of size 4.80-12 has an overall diameter of 20-1/2-inches and it is about 5-inches wide. You can switch to another size provided you have enough clearance within the fender wells and at the frame. But a tire of size 280/65-12 is more than twice as wide and would require wheels with a lot of negative offset to move the tire center further away form the trailer to avoid tire-to-frame contact. You would probably also need new fenders. We do not offer any special trailer...
    view full answer...

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Info for this part was:

Edited by:
Leah B
Expert Research:
Michael H
Expert Research:
Jameson C
Installed by:
Jeff D
Written by:
Mary E
Updated by:
Sarah W
Updated by:
Isabelle B

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